from operator import itemgetter

import requests

#执行API调用,并存储响应
url='https://hacker-news.firebaseio.com/v0/topstories.json'
r=requests.get(url)
print(f"Status code:{r.status_code}")

#处理有关每篇文章的信息
submission_ids=r.json()
submission_dicts=[]
for submission_id in submission_ids[:30]:
    #对于每篇文章,都执行一个API调用
    url=f'https://hacker-news.firebaseio.com/v0/item/{submission_id}.json'
    r=requests.get(url)
    print(f"id:{submission_id}\tstatus:{r.status_code}")
    response_dict=r.json()

    if 'descendants' not in response_dict:
        continue

    #对于每篇文章,都创建一个字典
    submission_dict={
        'title':response_dict['title'],
        'hn_link':f"http://news.ycombinator.com/item?id={submission_id}",
        'comments':response_dict['descendants'],
    }
    submission_dicts.append(submission_dict)

submission_dicts=sorted(submission_dicts,key=itemgetter('comments'),reverse=True)

for submission_dict in submission_dicts:
    print(f"\nTitle:{submission_dict['title']}")
    print(f"Discussion link:{submission_dict['hn_link']}")
    print(f"Comments:{submission_dict['comments']}")